PURPOSE: Estimation of Atlantic salmon smolt abundance in the Restigouche watershed. DESCRIPTION: Each spring (May-June), DFO installs a Rotary Screw Trap (RST; smolt wheel) on the Kedgwick river, a tributary of the Restigouche River. The number of individuals of each species of fish caught in the trap is recorded, and length and weight are measured for a portion of Atlantic salmon smolts captured. All Atlantic salmon smolts captured in the RST are tagged with uniquely-numbered polyethylene streamer tags and released upstream of the trap with the intention of using their rate of recapture to estimate the efficiency of the trap and the abundance of smolts (Capture-Mark-Recapture experiment). PARAMETERS COLLECTED: species counts (ecological); point (spatial); capture-mark-recapture data for Atlantic salmon smolts (ecological) NOTES ON QUALITY CONTROL: The data is stored in a relational database and therefore benefits from referential integrity between tables and observations. The database also defines data types for columns of the tables, ensuring a degree of consistency across observations. The field data sheets are also entered into a web app which provides an additional layer of quality control. USE LIMITATION: To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

PURPOSE: Adult salmon logbook data are collected annually from volunteer anglers on the Margaree River. These data are used as an input to the current model for predicting abundance of large and small salmon returns each season in the Margaree River (Breau and Chaput 2012). Logbook data used in the model come from in-season fishing. However, the dataset provided also includes early out-of-season fishing that was conducted by volunteer anglers under a scientific license issued by DFO. This early out-of-season early fishing began in 2015 as a pilot project and ran until 2023. DESCRIPTION: Tabularized data from logbooks of anglers in SFA 18A and 18B PHYSICAL SAMPLE DETAILS: Logbooks USE LIMITATION: To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

Subadult and smolt behavioral data were compiled by Ali Mokdad from Trevor Pitcher's lab at the University of Windsor, Ontario, Canada. Data are comprised of fish reactions in choice flume video data (attractance/avoidance) collected by Jeremy Kraus at Tunison Lab of Aquatic Science, August 2021 and February 2020 respectively. Atlantic salmon were exposed/not exposed to imprinting chemical (morpholine) through early life stages and later tested based on their treatment to see how individuals react to the presence of exposure chemicals during subsequent life stages. These data show how the adult stage Atlantic salmon of this study ((non exposed (control) and treatment (morpholine exposed)) react to timed exposure of morpholine dilution at the 3+ and 1+ year life stages. Imprinted Atlantic salmon morphometric data were collected Feb 20, 2020 at Tunison Lab. These data represent growth (length (mm) and weight (g)) of experimental Atlantic salmon, just after imprinting flume tests were completed for their life stage/age.

Tabular dataset of data collected from chinook salmon smolt trapping on the Chena River in May and June of 2017-2019. Trapping took place between the East end of the Fort Wainwright airfield (N 64.831952, W -147.571279) and adjacent to Chena Marina (N 64.81065, W -147.89908) in 2017, between Hamilton Acres (N 64.839650, W -147.681000) and Pikes Landing (N 64.830467, W –147.848750) in 2018, and between Nordale Road Bridge (N64.846536, W -147.410418) and Grahel Park (N 64.845831, W –147.706114) in 2019. This dataset contains the biometric and tagging data related to captured Chinook salmon.

Tabular dataset of data collected from chinook salmon smolt trapping on the Chena River in May and June of 2017-2019. Trapping took place between the East end of the Fort Wainwright airfield (N 64.831952, W -147.571279) and adjacent to Chena Marina (N 64.81065, W -147.89908) in 2017, between Hamilton Acres (N 64.839650, W -147.681000) and Pikes Landing (N 64.830467, W –147.848750) in 2018, and between Nordale Road Bridge (N64.846536, W -147.410418) and Grahel Park (N 64.845831, W –147.706114) in 2019. This dataset contains the total number of traps set on a given date and the total number of Chinook salmon captured on that given date.

Tabular dataset of data collected from chinook salmon smolt trapping on the Chena River in May and June of 2017-2019. Trapping took place between the East end of the Fort Wainwright airfield (N 64.831952, W -147.571279) and adjacent to Chena Marina (N 64.81065, W -147.89908) in 2017, between Hamilton Acres (N 64.839650, W -147.681000) and Pikes Landing (N 64.830467, W –147.848750) in 2018, and between Nordale Road Bridge (N64.846536, W -147.410418) and Grahel Park (N 64.845831, W –147.706114) in 2019. This dataset contains the total number of traps set on a given date and the total number of Chinook salmon captured on that given date.

The dataset comprises catch records of demersal fish and invertebrates from prawn trawl deployments completed on research voyage SS 03/2005. The survey design was a natural experiment (i.e. control-impact, but not before-after) to test the long-term, broadscale effects of prawn fishing on non-target species and habitats. Deployments were stratified by fishing intensity (three strata) and day/night. The survey was repeated in three regions: (a) north of Groote Eylandt, (b) north-east of the Vanderlins, and (c) north of Mornington Island. The number of deployments completed as part of the natural experiment was 124. Outside of the natural experiment, an additional 31 deployments were completed at dawn or dusk for diet analysis and an additional two deployments were completed for other reasons.

This dataset contains data collected by electronic tags (Pop-up Satellite Archival Transmitting) attached to Salvelinus malma (Dolly Varden trout) in the Wulik River, Alaska, in 2012 and 2013. Dolly Varden make up an important component of subsistence fisheries in northern Alaskan communities. While it is known that Dolly Varden may be broadly distributed throughout a wide range in the Pacific Ocean during the summer, their distribution in the Chukchi Sea is unknown. Because of this knowledge gap, fisheries managers are unable to assess potential risks of human activities, such as gas and oil exploration on Dolly Varden. This project (attaching PSAT tags to Dolly Varden) was an attempt to address this knowledge gap and provide baseline information on their oceanic distribution, and depth and temperature occupancy.